Document Detail

Human prefrontal cortical response to the meditative state: a spectroscopy study.
MedLine Citation:
PMID:  20583900     Owner:  NLM     Status:  In-Process    
The effect of Qigong meditation on the hemodynamics of the prefrontal cortex was investigated by spectroscopy with a single-wavelength probe (650 nm) and confirmed by standard near-infrared spectroscopy with a dual-wavelength probe. Deoxyhemoglobin changes were recorded with the single-wavelength probe over the left prefrontal cortex during meditation by Qigong practitioners, and non-practitioners instructed in the technique. Practitioners showed a significant decrease in deoxyhemoglobin levels suggesting an increase in prefrontal activation during meditation. The results were confirmed in a second set of experiments with the standard dual-wavelength probe, in which significant differences in the decrease in deoxyhemoglobin and increase in oxyhemoglobin concentrations were observed in practitioners as compared with non-practitioners. The study thus provides evidence that Qigong meditation has a significant effect on prefrontal activation.
Richard W F Cheng; Donald S Borrett; Weyland Cheng; Hon C Kwan; Richard S S Cheng
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  The International journal of neuroscience     Volume:  120     ISSN:  1563-5279     ISO Abbreviation:  Int. J. Neurosci.     Publication Date:  2010 Jul 
Date Detail:
Created Date:  2010-06-29     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0270707     Medline TA:  Int J Neurosci     Country:  England    
Other Details:
Languages:  eng     Pagination:  483-8     Citation Subset:  IM    
Department of Physiology, University of Toronto, Toronto, Ontario, Canada.
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